Kip. 1: The Name is "Mouse"

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The pilot episode, in which Mouse steals not only a Golden Skull but the entire Museum. After this, Mei, Yayoi and Hazuki are introduced as servants to Sorata (aka Mouse). After a scene in which all three girls attempt to get Sorata to "punish them", the detective pursuing Mouse is seen on television, challenging the thief to steal the newly built Odaiba Tower. (Source: Wikipedia)